my induction kit is hissing at tickover!

any ideas where it is coming from?

could it be vacuum hoses, if so, which ones can i check?

thanks in advance

That hissing noise should be the sound of the air passing through the filter at a faster rate; therefore making a louder noise.

I personally love the noise my filter makes; especially when I switch the engine off and the vaccuum clears with a LOUD hiss!!

Induction kits will always make more noise as ther are not hidden in a filter housing and also allow for a faster flow of air. Nothing to worry about!